A professional tool for resizing logos and images for signage, printing, and digital use while maintaining quality. This tool allows you to enlarge small logos to high-resolution formats suitable for large-scale printing and digital applications.
- High-Quality Enlargement: Resize small logos to much larger dimensions without pixelation or quality loss
- Aspect Ratio Preservation: Maintains the original proportions of your images perfectly
- Multi-Format Export: Automatically saves in three essential formats (PDF, PNG, JPG) with a single click
- Professional Output: Uses high-quality algorithms (Lanczos resampling) for the best possible results
- Transparent Background Support: Properly handles transparent PNG images when converting to other formats
- User-Friendly Interface: Simple, intuitive GUI requires no technical knowledge
- Preview Functionality: See the results before processing
- Customizable Scale Factor: Choose exactly how much to enlarge your image (1x-10x)
- Batch Processing Ready: Process multiple images with the command-line version
- Low-Resolution Logos: Often clients provide small logos that need to be enlarged for signs, banners, or high-quality prints
- Format Compatibility: Different applications require different formats (PDF for printing, PNG for web with transparency, JPG for general use)
- Quality Loss When Resizing: Standard resizing often results in pixelation and blurry edges
- Time-Consuming Manual Process: Converting between multiple formats manually takes time
- Sign makers and print shops
- Graphic designers
- Marketing professionals
- Anyone needing to prepare logos for large-format printing
python process_logo_simple.py [input_image_path] [scale_factor]input_image_path: Path to the image file to be processed (if not specified, "input_logo.png" is used)scale_factor: Enlargement factor (if not specified, 4 is used)
Example:
python process_logo_simple.py company_logo.png 5This will resize the logo to 5x its original size and save it in all three formats.
Run the logo_gui.py file for the graphical interface:
python logo_gui.py- Click "Browse" to select your logo file
- Adjust the scale factor slider (1x-10x) to set how much you want to enlarge the image
- (Optional) Set the output folder and filename
- Click "Preview" to see how the resized image will look
- Click "Process" to generate all three formats (PDF, PNG, JPG)
- Your processed files will be saved in the selected output folder
For users without Python installed, we provide a standalone Windows executable:
- Download the
LogoProcessorTool.exefrom the Releases page - Run the executable - no installation required
- Follow the same steps as the GUI version above
This tool uses advanced image processing techniques to ensure the highest quality output:
- Lanczos Resampling Algorithm: A high-quality interpolation method that preserves sharp edges and details
- Transparent Background Handling: Properly preserves transparency in PNG files and correctly converts to white backgrounds for PDF/JPG
- High DPI Output: PDF files are generated at 300 DPI, suitable for professional printing
- Lossless PNG Processing: PNG files are saved with maximum quality settings
- Optimized JPG Compression: JPG files use 95% quality setting for an optimal balance of quality and file size
- Python 3.6+
- Pillow (PIL Fork)
- Tkinter (for GUI)
pip install pillowHere are some examples of what this tool can do:
| Original (Small Logo) | Processed Result |
|---|---|
| Small logo (e.g., 300x200 px) | Enlarged to 1200x800 px with preserved quality |
| Logo with transparency | Transparency preserved in PNG, white background in PDF/JPG |
| Low-resolution logo | High-resolution output suitable for printing |
- Client provides a small logo (e.g., 400x300 pixels)
- You need it for a large sign (needs to be 1600x1200 pixels)
- Use Logo Processing Tool to resize it to 4x its original size
- Get high-quality outputs in all three formats
- Use the PDF for printing, PNG for digital use with transparency, JPG for web
Contributions are welcome! Here's how you can help:
- Fork the repository
- Create a feature branch (
git checkout -b feature/amazing-feature) - Commit your changes (
git commit -m 'Add some amazing feature') - Push to the branch (
git push origin feature/amazing-feature) - Open a Pull Request
Ideas for contributions:
- Add more output formats (SVG, TIFF, etc.)
- Implement batch processing in the GUI
- Add more image processing options (cropping, color adjustments, etc.)
- Create versions for other platforms (Mac, Linux)
MIT
- agedik
- aagedik